Average Error: 0.2 → 0.2
Time: 19.3s
Precision: 64
\[\frac{a}{-\cos^{-1} a}\]
↓
\[\frac{a}{-\cos^{-1} a}\]
\frac{a}{-\cos^{-1} a}
↓
\frac{a}{-\cos^{-1} a}
double f(double a) {
        double r3958075 = a;
        double r3958076 = acos(r3958075);
        double r3958077 = -r3958076;
        double r3958078 = r3958075 / r3958077;
        return r3958078;
}
↓
double f(double a) {
        double r3958079 = a;
        double r3958080 = acos(r3958079);
        double r3958081 = -r3958080;
        double r3958082 = r3958079 / r3958081;
        return r3958082;
}

Error

Bits error versus a

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.2

    \[\frac{a}{-\cos^{-1} a}\]

  2. Final simplification0.2

    \[\leadsto \frac{a}{-\cos^{-1} a}\]

Reproduce

herbie shell --seed 2019171 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))